Observatoire des droits humains (anglais seulement)

New discovery at Cern could hint at why our universe is made up of matter and not antimatter

(Version anglaise seulement)

par William Barter, UKRI Future Leaders Fellow, University of Edinburgh

Why didn’t the universe annihilate itself moments after the big bang? A new finding at Cern on the French-Swiss border brings us closer to answering this fundamental question about why matter dominates over its opposite – antimatter.

Much of what we see in everyday life is made up of matter. But antimatter exists in much smaller quantities. Matter and antimatter are almost direct opposites. Matter particles have an antimatter counterpart that has the same mass, but the opposite electric charge. For example, the…

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